package controller;

import java.io.IOException;
import java.lang.reflect.Method;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@SuppressWarnings("all")
public class BaseServlet extends HttpServlet {

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        req.setCharacterEncoding("UTF-8");

        try {
            // 1、获得请求的method的名称
            String methodName = req.getParameter("method");
            // 2、获得当前被访问的对象的字节码对象
            Class clazz = this.getClass();// ProductServlet.class ---- UserServlet.class
            // 3、获得当前字节码对象的中的指定方法
            Method method = clazz.getMethod(methodName, HttpServletRequest.class, HttpServletResponse.class);
            // 4、执行相应功能方法
            method.invoke(this, req, resp);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}
